Originally Posted by Desertice
you are absolutely right,,, pistol grip alone is not the best idea.... perhaps tactical grip ? what do u mean by upgrading the mag tube? any thoughts for lights?
the 500 magazine cap is solid so tube capacity ends there; the 590 is similar to an 870 or others where the lug on the barrel is large enough for an extension tube to add capacity. For instance, my 870 is 4 +1 stock, I put a 5 round extension on it so now it's 9 +1. The 590 comes standard with a 20" barrel which is plenty short enough yet holds 8 +1 and you could add to that if desired.
Any surefire style light (2 x 123A batteries) will be excellent, go for at least 60 lumens, 80 or 120 is better. The G2 from Surfire is what I use on most of my stuff because they're cheap yet work very well and are of great quality and last a long time.
there are also pump replacement gizmos with built in light attached with buttons in the pump itself, replaces the stock one. they're normally around $275, for less than $75 you can do the same thing with a surefire add on. I use the G2 with a remote cord/momentary switch velcroed to the pump.
I'll take a pic of mine and post it up.